Trim strip

Abstract

A trim strip is produced by extrusion coating a metallic insert with a vinyl chloride resin material through the medium of an acrylic resin type adhesive agent. The vinyl chloride resin material has the resin component thereof formed of 100 parts by weight of straight resin having an average polymerization degree, P, in the range of 1,000 to 3,000 and 15 to 50 parts by weight of polymethyl methacrylate having an average molecular weight, M, in the range of 1,000,000 to 4,000,000. The trim strip, therefore, produces high adhesive strength between the metallic insert and the vinyl chloride resin layer, enjoys satisfactory extrusibility, and entails substantially no formation of fisheyes in the coating of the produced trim strip.

What is claimed is: 
     
       1. A trim strip, comprising in combination (a) an insert made of a metal, (b) a vinyl chloride resin material having the resin component thereof formed of 100 parts by weight of straight resin having an average polymerization degree, P, in the range of 1,000 to 3,000 and 15 to 50 parts by weight of polymethyl methacrylate having an average molecular weight, M, in the range of 1,000,000 to 4,000,000 and used for extrusion coating said metallic insert, and (c) an acrylic resin adhesive agent through the medium of which said metallic insert is adhered to with said vinyl chloride resin material. 
     
     
       2. A trim strip according to claim 1, wherein said vinyl chloride resin material incorporates therein a stabilizer and a plasticizer. 
     
     
       3. A trim strip according to claim 2, wherein said stabilizer is one or more members selected from the group consisting of dibutyl tin dilaurate, dibutyl tin maleate, lead stearate, barium stearate, and tribasic lead maleate. 
     
     
       4. A trim strip according to claim 2, wherein said plasticizer is incorporated in an amount of not more than 30 PHR based on said straight resin. 
     
     
       5. A trim strip according to claim 2, wherein said plasticizer is one or more members selected from the group consisting of dioctyl phthalate, diisooctyl dibutyl phthalate, butylbenzyl phthalate, and didecyl phthalate. 
     
     
       6. A trim strip according to claim 1, wherein said metallic insert is made of stainless steel, steel, or aluminum. 
     
     
       7. A trim strip according to claim 1, wherein said acrylic resin adhesive agent has as the resin component thereof at least one member selected from the group consisting of homopolymers and interpolymers of such acrylic esters as methyl methacrylate, ethyl acrylate, butyl acrylate, and 2-ethylhexyl acrylate, copolymers of said homopolymers or interpolymers with acrylic acid, methacrylic acid, vinyl acetate, acrylonitrile, and ethylene.